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Date: Sun, 10 Jan 2021 18:37:56 +0100 From: Andrew Lunn <andrew@...n.ch> To: stefanc@...vell.com Cc: netdev@...r.kernel.org, thomas.petazzoni@...tlin.com, davem@...emloft.net, nadavh@...vell.com, ymarkman@...vell.com, linux-kernel@...r.kernel.org, kuba@...nel.org, linux@...linux.org.uk, mw@...ihalf.com, rmk+kernel@...linux.org.uk, atenart@...nel.org Subject: Re: [PATCH RFC net-next 18/19] net: mvpp2: add ring size validation before enabling FC On Sun, Jan 10, 2021 at 05:30:22PM +0200, stefanc@...vell.com wrote: > From: Stefan Chulski <stefanc@...vell.com> > > This patch add ring size validation before enabling FC. > 1. Flow control cannot be enabled if ring size is below start > threshold. > 2. Flow control disabled if ring size set below start > threshold. You should also tell phylink if pause is not supported, so it can change what is auto-negotiated, letting the link partner know. Andrew
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